In my former paper, “Glacial lakes of western New York,”* the glacial lake phenomena of western New York were treated in an introductory way, of necessity incomplete and somewhat theoretical. In subsequent papers† special features and restricted areas were described. So much of value and interest has since been learned concerning the lacustrine history of the area that it seems desirable to publish the present results as a review of the subject to date.
There still remain unstudied the extreme eastern and western limits of the area—that is, the valleys west of Tonawanda creek and those east of Butternut creek—and even within the studied area many points should be determined with more precision. Perhaps the most interesting matter relates to the history of the broader waters—the Newberry, Warren, and hyper-Iroquois lakes.
Unfortunately the topographical sheets of but a small part of the area have been published. . . .